ABR Traffic Control Scheme for Bursty Traffic Considering the Number of Hops


IEICE TRANSACTIONS on Communications   Vol.E81-B   No.11   pp.2056-2063
Publication Date: 1998/11/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Performance and Quality of Service (QoS) of Multimedia Networks)
Category: ATM Networks
ABR service,  bursty traffic,  ERICA switch algorithm,  average burst throughput,  weighted share,  

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One of the objectives of ABR traffic control is a fair allocation of transmission rate to every connection. Algorithms which have been proposed can achieve the fair allocation of transmission rate in persistent traffic, even though the connections have different number of hops. In bursty traffic, however, the transmission rate during the burst period, called average burst throughput, may become degraded when the number of hops increases. In this paper, we evaluate the average burst throughput characteristics of ERICA switch algorithm and investigate the effect of the number of hops. We propose a new bandwidth allocation method which can improve the performance degradation by taking the number of hops into account. The effectiveness of our method is evaluated by computer simulation.